The following words and phrases, when used in
this Article, shall have the meaning given to each herein unless the
context clearly indicates otherwise:
AIRCRAFT
Any contrivance, except an unpowered hang glider or parachute,
used for manned ascent into or flight through the air.
AIRPORT
Any area of land or water which is used or intended to be
used for the landing and takeoff of aircraft and any appurtenant areas
which are used or intended to be used for airport buildings or air
navigation facilities or rights-of-way, together with all airport
buildings and facilities thereon. As used herein, the term "airport"
includes public airports but excludes private airports and heliports.
Public and private airports are defined separately in this section.
AIRPORT ELEVATION
Eight hundred thirty feet, the highest point of an airport's
usable landing area, measured in feet above sea level.
AIRPORT HAZARD
Any structure or object, natural or manmade, or use of land
which obstructs the airspace required for flight or aircraft in landing
or taking off at an airport or is otherwise hazardous, as defined
by "airport hazard" in 74 Pa.C.S.A. § 5102.
AIRPORT HAZARD AREA
Any area of land or water upon which an airport hazard might
be established if not prevented as provided for in this chapter and
Act 164 of 1984 (Pennsylvania laws relating to aviation).
APPROACH SURFACE
A surface longitudinally centered on the extended runway center line, extending outward and upward from the end of the primary surface and at the same slope as the approach surface zone height limitation slope set forth in §
173-126 of this chapter. In plan, the perimeter of the "approach surface" coincides with the perimeter of the approach surface zone.
CONICAL SURFACE
A surface extending outward and upward from the periphery
of the horizontal surface at a slope of 20:1, for a horizontal distance
of 4,000 feet.
DEPARTMENT
The Pennsylvania Department of Transportation.
FAA
The Federal Aviation Administration of the United States
Department of Transportation.
HEIGHT
For the purpose of determining the height limits in all zones
set forth in this chapter and shown on the Zoning Map, the datum shall
be mean sea level elevation unless otherwise specified.
HORIZONTAL SURFACE
A horizontal plane 150 feet above the established airport
elevation, the perimeter of which in plan coincides with the perimeter
of the horizontal surface zone.
LARGER THAN UTILITY RUNWAY
A runway that is constructed for and intended to be used
by propeller-driven aircraft of greater than 12,500 pounds' maximum
gross weight and jet-powered aircraft.
NONCONFORMING USE
Any pre-existing structure, object of natural growth, or
use of land which is inconsistent with the provisions of this chapter
or an amendment thereto.
NONPRECISION INSTRUMENT RUNWAY
A runway having an existing instrument approach procedure
utilizing air navigation equipment, for which a straight-in nonprecision
instrument approach procedure has been approved or planned.
OBSTRUCTION
Any structure, growth or other object, including a mobile object, which exceeds a limiting height set forth in §
173-127 of this chapter.
PERSON
An individual, firm, partnership, corporation, company, association,
joint-stock association or governmental entity; includes a trustee,
a receiver, an assignee or similar representative.
PRECISION INSTRUMENT RUNWAY
A runway having an existing instrument approach procedure
utilizing an Instrument Landing System (ILS) or a Precisions Approach
Radar (PAR). It also means a runway for which a precision approach
system is planned and is so indicated on an approved airport layout
plan or any other planning document.
PRIMARY SURFACE
A surface longitudinally centered on a runway. When the runway has a specially prepared hard surface, the "primary surface" extends 200 feet beyond each end of that runway. For military runways or when the runway has no specially prepared hard surface or planned hard surface, the "primary surface" ends at each end of that runway. The width of the "primary surface" is set forth in §
173-126 of this chapter. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
PRIVATE AIRPORT
An airport which is privately owned and which is not open
or intended to be open to the public as defined in 74 Pa.C.S.A. § 5102.
PUBLIC AIRPORT
An airport which is either publicly or privately owned and
which is open to the public as defined in 74 Pa.C.S.A. § 5102.
RUNWAY
A defined area on an airport prepared for landing and takeoff
of aircraft along its length.
STRUCTURE
An object, including a mobile object, constructed or installed
by man, including, but without limitation, buildings, towers, cranes,
smokestacks, earth formation and overhead transmission lines.
TRANSITIONAL SURFACES
These surfaces extend outward at ninety-degree angles to
the runway center line and the runway center line extended at a slope
of seven feet horizontally for each foot vertically from the sides
of the primary and approach surfaces to where they intersect the horizontal
and conical surfaces. "Transitional surfaces" for those portions of
the precision approach surfaces, which project through and beyond
the limits of the conical surface, extend a distance of 5,000 feet
measured horizontally from the edge of the approach surface and at
ninety-degree angles to the extended runway center line.
TREE
Any object of natural growth.
UTILITY RUNWAY
A runway that is constructed for and intended to be used
by propeller-driven aircraft of 12,500 pounds maximum gross weight
or less.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using
visual approach procedures.
In order to carry out the provisions of this
chapter, there are hereby created and established certain zones which
include all lands lying beneath the approach surfaces, transitional
surfaces, horizontal surfaces and conical surfaces as they apply to
the Sayre Airport. Such zones are shown on the Sayre Airport Height
Limitation and Zoning District Map prepared by the Pennsylvania Department
of Transportation, Bureau of Aviation, and dated Spring 1989, which
by reference is made a part of this chapter. An area located in more
than one of the following zones is considered to be only in the zone
with the more restrictive height limitation. The various zones are
hereby established and defined as follows:
A. Utility Runway Visual Approach Surface Zone: established
beneath the visual approach surface. The inner edge of this zone coincides
with the width of the primary surface and is 250 feet wide. The zone
expands outward uniformly to a width of 1,250 feet at a horizontal
distance of 5,000 feet from the primary surface. Its center line is
the continuation of the center line of the runway.
B. Utility Runway Nonprecision Instrument Approach Surface
Zone: established beneath the nonprecision instrument approach surface.
The inner edge of this zone coincides with the width of the primary
surface and is 500 feet wide. The zone expands outward uniformly to
a width of 2,000 feet at a horizontal distance 5,000 feet from the
primary surface. Its center line is the continuation of the center
line of the runway.
C. Runway Larger Than Utility Visual Approach Surface
Zone: established beneath the visual approach surface. The inner edge
of this zone coincides with the width of the primary surface and is
500 feet wide. The zone expands outward uniformly to a width of 1,500
feet a horizontal distance of 5,000 feet from the primary surface.
Its center line is the continuation of the center line of the runway.
D. Runway Larger Than Utility With A Visibility Minimum
Greater Than Three-Fourths Mile Nonprecision Instrument Approach Surface
Zone: established beneath the nonprecision instrument approach surface.
The inner edge of this zone coincides with the width of the primary
surface and is 500 feet wide. The zone expands outward uniformly to
a width of 3,500 feet at a horizontal distance of 10,000 feet from
the primary surface. Its center line is the continuation of the center
line of the runway.
E. Runway Larger Than Utility With A Visibility Minimum
As Low As Three-Fourths Mile Nonprecision Instrument Approach Surface
Zone: established beneath the nonprecision instrument approach surface.
The inner edge of this zone coincides with the width of the primary
surface and is 1,000 feet wide. The zone expands outward uniformly
to a width of 4,000 feet at a horizontal distance of 10,000 feet from
the primary surface. Its center line is the continuation of the center
line of the runway.
F. Precision Instrument Runway Approach Surface Zone:
established beneath the precision instrument approach surface. The
inner edge of this zone coincides with the width of the primary surface
and is 1,000 feet wide. The zone expands outward uniformly to a width
of 16,000 feet at a horizontal distance of 50,000 feet from the primary
surface. Its center line is the continuation of the center line of
the runway. Appropriate runway type and dimension for the width of
the primary surface is set forth in Federal Aviation Regulation, Part
77, Objects Affecting Navigable Airspace, Dimensional Standards Table,
page 19, January 1975.
G. Transitional Surface Zones: established beneath the
transitional surfaces adjacent to each runway and approach surface
as indicated on the Height Limitation and Zoning District Map.
H. Horizontal Surface Zone: established beneath the horizontal
surface, 150 feet above the established airport elevation, the perimeter
of which is constructed in accordance with the provisions contained
within the Model Airport Zoning Ordinance to Limit the Height of Objects
Around Airports, prepared by L. Robert Kimball and Associates, for
the Pennsylvania Department of Transportation, Bureau of Aviation,
1989. The horizontal surface zone does not include the approach surface
and transitional surface zones.
I. Conical Surface Zone: established beneath the conical
surface. This zone commences at the periphery of the horizontal surface
and extends outward therefrom a horizontal distance of 4,000 feet.